[[1499994000, 1] ,[1499997600, 1] ,[1500001200, 1] ,[1500008400, 8] ,[1500012000, 7] ,[1500015600, 6] ,[1500019200, 12] ,[1500022800, 8] ,[1500026400, 15] ,[1500030000, 4] ,[1500033600, 17] ,[1500037200, 12] ,[1500040800, 14] ,[1500044400, 8] ,[1500048000, 16] ,[1500051600, 17] ,[1500055200, 20] ,[1500058800, 18] ,[1500062400, 12] ,[1500066000, 8] ,[1500069600, 9] ,[1500073200, 1]